I found envi! He's OC is in an anime! Kappa : r/Enviosity
Nine kappa (Anime - episode's 17-18) by Kappita03 on DeviantArt
That One Touhou Page - Nitori Kawashiro! Gensokyo's Local Handy Girl~ Nitori is a Kappa who resides in the Genbu Ravine on Youkai Mountain. A Kappa is a water dwelling youkai with
Sarazanmai - Wikipedia
kappa (monster girl encyclopedia) drawn by kurovah | Danbooru
Female Kappa | Anime-Planet
Amazon.com: Sarazanmai- Toi Kappa Ver Pin : Clothing, Shoes & Jewelry